What is the ruling on adopting anomalous views and seeking concessions, along with the evidence, and what is meant by "that which does not concern him" in the saying: "Part of a person's good Islam is his leaving that which does not concern him"?

"Irregularity" (shudhudh) is defined as going against the majority. Among the Hadith scholars, it refers to a trustworthy narrator contradicting someone more authoritative than them. It is obligatory to adopt jurisprudential rulings that are supported by the Qur'an, Sunnah, or scholarly consensus (ijma'), or those that align with the analogy (qiyas) used by scholars. If a contradiction arises, it is obligatory to adopt the stronger and more preponderant evidence, regardless of whether it aligns with the majority opinion or not. A mufti is not permitted to arbitrarily choose either of two opinions without due consideration; rather, they must act upon the more preponderant of the two.